Third sitting in a row with a roach infestation

I am so done with this heat and humidity. I live in the South and I have encountered my third sitting with a roach infestation. These are all regular clients who I have known for years so it is no way their fault. It seems like they had no way of figuring out the problem until it was too late. I am deadly scared of roaches. I am so tired of living in this humid, nasty city where roaches run amock.